Twitter and Facebook may be the key to finding out if time travel is possible, a group of scientists have claimed, despite having uncovered no evidence to suggest it.

Two scientists – astrophysicist Robert Nemiroff and Teresa Wilson from the Michigan Technological University – searched the social networks for messages that related to events that had taken place after they were written.

They delved into historical information on Twitter and Facebook, looking for anyone that had written about the Comet ISON discovery in September 2012 and Pope Francis’ election in March,

Twitter could also provide answers to time travel (Picture: AFP/Getty Images)

Their search ended in disappointment, with no messages being found that mentioned the events prior to them taking place.

But that doesn’t mean time travel isn’t possible, apparently.

‘It may be physically impossible for us to find such information as that would violate some yet-unknown law of physics,’ Nemiroff and Wilson wrote in the study published in December.

‘Time travelers may not want to be found, and may be good at covering their tracks.’